Question

James' present age is 2/7 of his father's present
age. James brother is three year older to james the
respective ratio between present ages of james
father and james brother is 14:5 What is the present
age of james?​

Answer 1

answer:

Step-by-step explanation:

here, let the present age of james be x.

∴ james father's present age=2x/7

and age of james brother is=(2x/7)+3

ratio of ages b/w james father and brother=14/5

now, equating both equations,we get

∵ (2x/7)/(2x/7+3)=14/5

or (2x/7)/(2x+21/7)=14/5

or (2x/7)*(7/2x+21)=14/5

or 2x/(2x+21)=14/5

or 14*(2x+21)=2x*5

or 28x+294=10x

or 28x-10x=294

or 18x=294

or x=16.3

∴ the present age of james is about 16year and 3 months. i.e. 16.3 is the answer.